import java.util.HashMap;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.Executors;

public class MainJava {
    public static void main(String [ ] args) { 
        System.out.println("HELLOW WORLD FROM JAVA! ");
        Executors.newFixedThreadPool(2);

        HashMap<String,String> x;

        ConcurrentHashMap<String,String> x2;

    }
}  

